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//! Assert macros for comparing lengths.
//!
//! These macros help with collection lengths, such as for strings, arrays,
//! vectors, iterators, and anything that has a typical `.len()` method.
//!
//! Compare a length with another length:
//!
//! * [`assert_len_eq!(a, b)`](macro@crate::assert_len_eq) ≈ a.len() = b.len()
//!
//! * [`assert_len_ne!(a, b)`](macro@crate::assert_len_ne) ≈ a.len() ≠ b.len()
//!
//! * [`assert_len_lt!(a, b)`](macro@crate::assert_len_lt) ≈ a.len() < b.len()
//!
//! * [`assert_len_le!(a, b)`](macro@crate::assert_len_le) ≈ a.len() ≤ b.len()
//!
//! * [`assert_len_gt!(a, b)`](macro@crate::assert_len_gt) ≈ a.len() > b.len()
//!
//! * [`assert_len_ge!(a, b)`](macro@crate::assert_len_ge) ≈ a.len() ≥ b.len()
//!
//! Compare a length with an expression:
//!
//! * [`assert_len_eq_expr!(a, expr)`](macro@crate::assert_len_eq_expr) ≈ a.len() = expr
//!
//! * [`assert_len_ne_expr!(a, expr)`](macro@crate::assert_len_ne_expr) ≈ a.len() ≠ expr
//!
//! * [`assert_len_lt_expr!(a, expr)`](macro@crate::assert_len_lt_expr) ≈ a.len() < expr
//!
//! * [`assert_len_le_expr!(a, expr)`](macro@crate::assert_len_le_expr) ≈ a.len() ≤ expr
//!
//! * [`assert_len_gt_expr!(a, expr)`](macro@crate::assert_len_gt_expr) ≈ a.len() > expr
//!
//! * [`assert_len_ge_expr!(a, expr)`](macro@crate::assert_len_ge_expr) ≈ a.len() ≥ expr
//!
//! # Example
//!
//! ```rust
//! use assertables::*;
//!
//! # fn main() {
//! let a = "x";
//! let b = "x";
//! assert_len_eq!(a, b);
//! # }
//! ```
// Compare another
// Compare expression